/* Basic Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS Variables for Theme Management */
:root {
    /* Dark Mode Colors (Default) */
    --bg-primary: #0a0e27;
    --bg-secondary: #1a1f3a;
    --bg-tertiary: #252b4a;
    --bg-gradient-start: #0f1535;
    --bg-gradient-end: #1a1f3a;
    --text-primary: #e8eaf6;
    --text-secondary: #9ca3c4;
    --accent-primary: #ee774c;
    --accent-secondary: #ff9472;
    --accent-hover: #f6571e;
    --accent-glow: rgba(238, 119, 76, 0.4);
    --border-color: #2d3454;
    --shadow: rgba(0, 0, 0, 0.5);
    --shadow-subtle: rgba(0, 0, 0, 0.2);
    --shadow-glow: rgba(99, 102, 241, 0.3);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;

    /* Container */
    --container-width: 950px;
    --container-padding: 2rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-smooth: 0.35s cubic-bezier(0.4, 0.0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Light Mode Colors */
[data-theme="light"] {
    --bg-primary: #f8f9fc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0f2f7;
    --bg-gradient-start: #fafbfd;
    --bg-gradient-end: #f5f6fa;
    --text-primary: #1a1d2e;
    --text-secondary: #5a6177;
    --accent-primary: #ee774c;
    --accent-secondary: #ff9472;
    --accent-hover: #f6571e;
    --accent-glow: rgba(238, 119, 76, 0.3);
    --border-color: #d4d7e2;
    --shadow: rgba(0, 0, 0, 0.08);
    --shadow-subtle: rgba(0, 0, 0, 0.04);
    --shadow-glow: rgba(91, 95, 199, 0.2);
}

/* Global Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-weight: 300;
    line-height: 1.7;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Page Transition Overlay */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.page-transition.active {
    opacity: 1;
    pointer-events: all;
}

.page-transition.fade-out {
    opacity: 0;
}

/* Theme Curtain Transition */
.curtain-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    display: flex;
    visibility: hidden;
}

.curtain-overlay.closing,
.curtain-overlay.opening {
    visibility: visible;
}

.curtain {
    flex: 1;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    box-shadow: inset 0 0 60px rgba(0,0,0,0.3);
    transition: transform 0.8s cubic-bezier(0.65, 0, 0.35, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.curtain-letter {
    font-size: 15rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.15);
    user-select: none;
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.3s ease 0.4s, transform 0.3s ease 0.4s;
}

.curtain-overlay.closing .curtain-letter {
    opacity: 1;
    transform: scale(1);
}

.curtain-left {
    transform: translateX(-101%);
}

.curtain-left .curtain-letter {
    margin-left: 72%;
}

.curtain-right {
    transform: translateX(101%);
}

.curtain-right .curtain-letter {
    margin-right: 82%;
}

.curtain-overlay.closing .curtain-left,
.curtain-overlay.closing .curtain-right {
    transform: translateX(0);
}

.curtain-overlay.opening .curtain-left {
    transform: translateX(-101%);
}

.curtain-overlay.opening .curtain-right {
    transform: translateX(101%);
}

/* Transition Logo Animation */
.transition-logo {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 16px;
    font-size: 2rem;
    font-weight: 800;
    color: white;
    animation: logoFloat 1.2s ease-in-out;
    box-shadow: 0 0 40px var(--accent-glow), 0 0 80px var(--accent-glow);
}

.transition-logo::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 1.2s ease-in-out infinite;
    opacity: 0.4;
}

@keyframes logoFloat {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.4;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.6;
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.8;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-hover);
}

/* Container */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Buttons */
button, .button {
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.cta-button {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    box-shadow: 0 4px 20px var(--shadow-glow);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.cta-button:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 32px var(--accent-glow), 0 0 40px var(--shadow-glow);
}

.cta-button:hover::before {
    opacity: 1;
}

.cta-button span {
    position: relative;
    z-index: 1;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* Header & Navigation */
header {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 16px var(--shadow);
}

[data-theme="light"] header {
    background: rgba(255, 255, 255, 0.9);
}

nav {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--spacing-md) var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

[data-theme="light"] .logo {
    color: var(--text-primary);
}

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 800;
    color: white;
}

.logo-text {
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

[data-theme="light"] .logo-text {
    color: #1a1d2e;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 400;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    position: relative;
}

[data-theme="light"] .nav-links a {
    color: #4a5568;
    font-weight: 500;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    transform: translateX(-50%);
    transition: width var(--transition-normal);
}

.nav-links a:hover {
    color: var(--accent-primary);
    background-color: rgba(99, 102, 241, 0.1);
}

[data-theme="light"] .nav-links a:hover {
    color: var(--accent-primary);
}

.nav-links a:hover::after {
    width: 80%;
}

/* Back to Landing Page Button */
.back-to-landing-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    text-decoration: none;
}

.back-to-landing-btn:hover {
    color: var(--accent-primary);
    background-color: rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

.back-icon {
    font-size: 1rem;
    transition: transform var(--transition-normal);
}

.back-to-landing-btn:hover .back-icon {
    transform: translateX(-2px);
}

/* Toggle Container */
.theme-toggle {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  position: relative;
  width: 62px;
  height: 32px;
  display: flex;
  align-items: center;
}

/* Track */
.toggle-track {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  overflow: hidden;
  transition: background 0.3s ease;
}

/* Thumb (the moving knob) */
.toggle-thumb {
  position: absolute;
  top: 1px;
  left: 2px;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 50%;
  transition: transform 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.toggle-thumb::after {
  content: '';
  width: 14px;
  height: 14px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5' stroke-linecap='round'%3E%3Ccircle cx='12' cy='12' r='5'/%3E%3Cpath d='M12 1v2m0 18v2M4.22 4.22l1.42 1.42m12.72 12.72l1.42 1.42M1 12h2m18 0h2M4.22 19.78l1.42-1.42M18.36 5.64l1.42-1.42'/%3E%3C/svg%3E") center/contain no-repeat;
  transition: opacity 0.3s ease;
}

[data-theme="light"] .toggle-thumb::after {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* Icons inside */
.icon-sun, .icon-moon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.icon-sun {
  left: 7px;
  opacity: 1;
}

.icon-moon {
  right: 5px;
  opacity: 0;
}


/* When active / toggled (light mode) */
[data-theme="light"] .toggle-track {
  background: var(--bg-light-tertiary);
}
[data-theme="light"] .toggle-thumb {
  transform: translateX(28px);
}
[data-theme="light"] .icon-sun {
  opacity: 0;
}
[data-theme="light"] .icon-moon {
  opacity: 1;
}

/* Main Sections */
main {
    min-height: 100px;
    background: var(--bg-primary);
}

/* Tool Interface Section */
.tool-section {
    background: var(--bg-primary);
    padding: 100px 0 100px 0;
    min-height: calc(100vh - 20px);
}

/* Tab Navigation */
.tab-navigation {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xs);
    background: var(--bg-secondary);
    border-radius: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px var(--shadow-subtle), 0 8px 24px var(--shadow);
    position: relative;
}

.tab-navigation::before {
    content: '';
    position: absolute;
    top: var(--spacing-xs);
    left: var(--spacing-xs);
    width: calc(33.333% - var(--spacing-sm));
    height: calc(100% - calc(var(--spacing-xs) * 2));
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 50px;
    transition: transform 0.6s cubic-bezier(0.4, 0.0, 0.2, 1);
    z-index: 0;
    pointer-events: none;
}

.tab-navigation[data-active="0"]::before {
    transform: translateX(0);
}

.tab-navigation[data-active="1"]::before {
    transform: translateX(calc(100% + var(--spacing-sm)));
}

.tab-navigation[data-active="2"]::before {
    transform: translateX(calc(200% + calc(var(--spacing-sm) * 2)));
}

.tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: none;
    border-radius: 50px;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: color 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
    position: relative;
    z-index: 1;
}

.tab-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 700;
    transition: background 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.tab-label {
    font-size: 0.95rem;
    transition: color 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.tab-btn.active {
    color: white;
}

.tab-btn.active .tab-number {
    background: rgba(255, 255, 255, 0.2);
}

.tab-btn:not(.active):hover {
    color: var(--accent-primary);
}

.tab-btn:not(.active):hover .tab-number {
    background: rgba(99, 102, 241, 0.2);
}

/* Tab Content */
.tab-content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Upload Card */
.upload-card {
    background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xxl) var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-smooth);
    box-shadow: 0 4px 16px var(--shadow-subtle);
    position: relative;
    overflow: hidden;
}

.upload-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, var(--accent-glow), transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.upload-card.drag-over {
    border-color: var(--accent-primary);
    box-shadow: 0 8px 32px var(--shadow-glow), 0 2px 8px var(--shadow);
    transform: scale(1.01);
}

.upload-card.drag-over::before {
    opacity: 0.3;
}

.upload-icon-large {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-lg);
    opacity: 0.8;
    position: relative;
    box-shadow: 0 4px 16px var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-icon-large::after {
    content: '↑';
    font-size: 2rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.upload-card h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
}

.upload-card > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.upload-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.btn-primary {
    padding: var(--spacing-sm) var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px var(--shadow-subtle);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:active {
    transform: translateY(0px);
    transition: transform 0.1s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow), 0 4px 12px var(--shadow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-secondary {
    padding: var(--spacing-sm) var(--spacing-xl);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 4px var(--shadow-subtle);
}

.btn-secondary:active {
    transform: translateY(0px);
    transition: transform 0.1s ease;
}

.btn-secondary:hover {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-subtle);
}

.upload-info {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.upload-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Options Card */
.options-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 4px 16px var(--shadow-subtle);
    animation: fadeIn 0.3s ease;
}

.options-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-md);
}

.options-card h3 {
    margin-bottom: 0;
    font-size: 1.5rem;
}

.option-group {
    margin-bottom: var(--spacing-lg);
}

.option-group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.option-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.option-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.02em;
    color: var(--text-primary);
}

.option-group-header label {
    margin-bottom: 0;
}

.model-select,
.prompt-input,
.batch-input {
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all var(--transition-smooth);
}

.model-select:focus,
.prompt-input:focus,
.batch-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

.prompt-input {
    min-height: 120px;
    resize: vertical;
}

.batch-input {
    width: 100px;
}

.option-description {
    margin-top: var(--spacing-xs);
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}


/* Advanced Settings */
.advanced-settings {
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-lg);
}

.advanced-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
}

.advanced-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.advanced-toggle {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border-radius: var(--radius-md);
}

.advanced-toggle:hover {
    background: var(--bg-tertiary);
}

.toggle-icon {
    font-size: 0.7rem;
    transition: transform var(--transition-normal);
}

.advanced-toggle.active .toggle-icon {
    transform: rotate(90deg);
}

.advanced-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0.0, 0.2, 1), opacity 0.3s ease;
    opacity: 0;
}

.advanced-content.open {
    max-height: 1000px;
    margin-top: var(--spacing-md);
    opacity: 1;
}

.model-params {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md) var(--spacing-lg);
}

.param-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.param-group.full-width {
    grid-column: 1 / -1;
}

/* Responsive: stack on smaller screens */
@media (max-width: 768px) {
    .model-params {
        grid-template-columns: 1fr;
    }
}

.param-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.param-input {
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    transition: all var(--transition-smooth);
}

.param-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

.param-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
    font-style: italic;
}

.param-select {
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    transition: all var(--transition-smooth);
}

.param-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

.param-description {
    margin-top: 2px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.3;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-weight: 500;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--accent-primary);
    transition: transform var(--transition-fast);
}

.checkbox-label input[type="checkbox"]:hover {
    transform: scale(1.1);
}

.checkbox-label input[type="checkbox"]:active {
    transform: scale(0.95);
}

.checkbox-label span {
    font-weight: 600;
    font-size: 0.9rem;
}

/* Results Card */
.results-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 4px 16px var(--shadow-subtle);
    animation: fadeIn 0.3s ease;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-md);
}

.results-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.results-card h3 {
    margin-bottom: 0;
    font-size: 1.5rem;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-smooth);
    box-shadow: 0 2px 8px var(--shadow-subtle);
    position: relative;
    overflow: hidden;
}

.btn-download::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow), 0 4px 12px var(--shadow);
}

.btn-download:hover::before {
    left: 100%;
}

.btn-download:active {
    transform: translateY(0px);
    transition: transform 0.1s ease;
}

.btn-download:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-download:disabled:hover {
    transform: none;
    box-shadow: 0 2px 8px var(--shadow-subtle);
}

.download-icon {
    font-size: 1.1rem;
    font-weight: 700;
}

/* Processing Controls */
.processing-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-control {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-smooth);
    position: relative;
}

.btn-control:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.btn-control:active {
    transform: translateY(0px);
}

.btn-pause {
    border-color: var(--accent-primary);
}

.btn-pause:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-pause.paused {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.btn-pause.paused .control-icon::before {
    content: '▶';
}

.btn-stop {
    border-color: #ef4444;
}

.btn-stop:hover {
    background: #ef4444;
    border-color: #ef4444;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

.control-icon {
    font-size: 1rem;
    font-weight: 700;
}

.results-grid {
    column-count: 3;
    column-gap: calc(var(--spacing-md) / 2);
}

@media (max-width: 1024px) {
    .results-grid {
        column-count: 3;
    }
}

@media (max-width: 768px) {
    .results-grid {
        column-count: 2;
    }
}

@media (max-width: 480px) {
    .results-grid {
        column-count: 1;
    }
}


.result-item {
    display: inline-block;
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    transition: all var(--transition-smooth);
    margin-bottom: calc(var(--spacing-md) / 2);
    break-inside: avoid;
    opacity: 0;
    transform: scale(0.8) translateY(20px);
    animation: resultAppear 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes resultAppear {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.result-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow), 0 0 20px var(--shadow-glow);
    border-color: var(--accent-primary);
}

.result-image {
    width: 100%;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-secondary);
    display: block;
}

.result-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: all 0.5s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.result-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0);
    backdrop-filter: blur(0px);
    transition: all 0.5s cubic-bezier(0.4, 0.0, 0.2, 1);
    pointer-events: none;
}

.result-item:hover .result-image::after {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
}

.result-item:hover .result-image img {
    transform: scale(1.05);
}

.result-text {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-lg);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.7) 70%, transparent 100%);
    color: white;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s cubic-bezier(0.4, 0.0, 0.2, 1);
    z-index: 10;
    pointer-events: none;
}

.result-item:hover .result-text {
    opacity: 1;
    transform: translateY(0);
}

/* Handle stretched images - add bottom space on hover to prevent text cutoff */
.result-item.stretched-image:hover .result-image {
    padding-bottom: 80px;
    transition: padding-bottom 0.5s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.result-item.stretched-image .result-image {
    padding-bottom: 0;
    transition: padding-bottom 0.5s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.result-text p {
    margin: 0;
    color: white;
    font-size: 0.9rem;
    line-height: 1.6;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Pagination Controls */
.pagination-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md) 0;
}

.pagination-btn {
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-smooth);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-glow);
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Status Notification Toast */
/* Sleek Status Notification Toast */
.copy-toast {
    position: fixed;
    bottom: -60px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(40, 42, 58, 0.85); /* subtle glassy background */
    backdrop-filter: blur(8px);
    color: #fff;
    padding: 0.6rem 1.2rem;
    border-radius: 12px; /* less pill, more modern card */
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
    font-weight: 500;
    font-size: 0.9rem;
    z-index: 10000;
    transition: bottom 0.35s cubic-bezier(0.4, 0.0, 0.2, 1), opacity 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
}

.copy-toast.show {
    bottom: 2rem;
    opacity: 1;
}

.copy-toast::before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 700;
}


/* Footer */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
}

.footer-minimal {
    text-align: center;
}

.footer-minimal p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-minimal a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.footer-minimal a:hover {
    color: var(--accent-hover);
}

/* Responsive Design */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .nav-links {
        gap: var(--spacing-md);
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .tab-navigation {
        flex-direction: column;
        border-radius: var(--radius-lg);
        max-width: 100%;
        padding: var(--spacing-sm);
        gap: var(--spacing-xs);
        margin-bottom: var(--spacing-lg);
    }

    .tab-btn {
        border-radius: var(--radius-md);
        padding: var(--spacing-md) var(--spacing-lg);
        min-height: 56px;
        justify-content: flex-start;
        gap: var(--spacing-md);
    }

    .tab-navigation::before {
        display: none;
    }

    /* Mobile tab content wrapper styles */
    .tab-content-wrapper {
        max-width: 100%;
        padding: 0 var(--spacing-md);
    }

    /* Mobile tab content adjustments */
    .tab-content {
        padding: 0;
    }

    /* Mobile upload card */
    .upload-card {
        padding: var(--spacing-lg) var(--spacing-md);
        margin: 0;
    }

    .upload-icon-large {
        width: 60px;
        height: 60px;
        margin-bottom: var(--spacing-md);
    }

    .upload-card h3 {
        font-size: 1.5rem;
    }

    .upload-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    /* Mobile options card */
    .options-card {
        padding: var(--spacing-lg);
        margin: 0;
    }

    .options-header {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .options-header h3 {
        font-size: 1.3rem;
    }

    .option-group {
        margin-bottom: var(--spacing-md);
    }

    .prompt-input {
        min-height: 100px;
    }

    /* Mobile results card */
    .results-card {
        padding: var(--spacing-lg);
        margin: 0;
    }

    .results-header {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .results-header h3 {
        font-size: 1.3rem;
    }

    .queue-header {
        flex-direction: column;
        align-items: stretch;
    }

    .queue-header h3 {
        text-align: center;
    }

    .queue-controls {
        flex-direction: column;
    }

    .queue-footer {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }


    .queue-stats {
        text-align: center;
    }

    .options-header {
        flex-direction: column;
        align-items: stretch;
    }

    .options-card h3 {
        text-align: center;
    }

    .options-header .btn-primary {
        width: 100%;
        justify-content: center;
    }

    .results-header {
        flex-direction: column;
        align-items: stretch;
    }

    .results-card h3 {
        text-align: center;
    }

    .results-header-actions {
        justify-content: center;
    }

    .btn-download {
        width: 100%;
        justify-content: center;
    }

    .processing-controls {
        width: 100%;
        justify-content: center;
    }

    .result-item {
        margin-bottom: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    /* Enhanced mobile tab navigation */
    .tab-navigation {
        padding: var(--spacing-xs);
        gap: 4px;
        margin-bottom: var(--spacing-md);
    }

    .tab-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        min-height: 48px;
        justify-content: center;
        gap: var(--spacing-sm);
    }

    .tab-number {
        width: 20px;
        height: 20px;
        font-size: 0.7rem;
    }

    .tab-label {
        font-size: 0.85rem;
    }

    /* Enhanced mobile tab content */
    .tab-content-wrapper {
        padding: 0 var(--spacing-sm);
    }

    .upload-card {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }

    .upload-icon-large {
        width: 50px;
        height: 50px;
    }

    .upload-card h3 {
        font-size: 1.3rem;
    }

    .options-card,
    .results-card {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }

    .upload-buttons {
        gap: var(--spacing-xs);
    }

    .btn-primary,
    .btn-secondary {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }

    /* Queue container mobile styles */
    .upload-queue-container {
        padding: var(--spacing-md);
    }

    .queue-item {
        padding: var(--spacing-xs);
    }

    .queue-item-preview {
        width: 40px;
        height: 40px;
    }

    /* Mobile tool section adjustments */
    .tool-section {
        padding: 60px 0 60px 0;
    }

    /* Ensure proper spacing on mobile */
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* Upload Queue Container */
.upload-queue-container {
    background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 4px 16px var(--shadow-subtle);
    margin-top: var(--spacing-lg);
    border: 2px dashed transparent;
    transition: all var(--transition-normal);
}

.upload-queue-container.drag-over {
    border-color: var(--accent-primary);
    background: linear-gradient(145deg, var(--bg-tertiary), var(--bg-secondary));
    box-shadow: 0 0 20px var(--shadow-glow);
    transform: scale(1.01);
}

.queue-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    gap: var(--spacing-md);
}

.queue-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0;
}

.queue-controls {
    display: flex;
    gap: var(--spacing-sm);
}

.queue-list {
    max-height: 400px;
    overflow-y: auto;
    padding-right: var(--spacing-xs);
}

/* Custom scrollbar for queue list */
.queue-list::-webkit-scrollbar {
    width: 8px;
}

.queue-list::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

.queue-list::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 4px;
}

.queue-list::-webkit-scrollbar-thumb:hover {
    background: var(--accent-hover);
}

.queue-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-smooth);
    perspective: 1000px;
    animation: fadeInSlide 0.3s ease;
}

@keyframes fadeInSlide {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.queue-item:hover {
    background: var(--bg-tertiary);
    transform: translateX(4px);
}

.queue-item-preview {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    background: var(--bg-tertiary);
    transition: transform 0.3s ease, box-shadow 0.3s ease, filter 0.3s ease;
    transform-style: preserve-3d;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.queue-item-preview:hover {
    transform: scale(1.15);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4), 0 0 20px var(--shadow-glow);
    filter: brightness(1.1);
    z-index: 10;
}

.queue-item-info {
    flex: 1;
    min-width: 0;
}

.queue-item-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.queue-item-size {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.queue-item-remove {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-smooth);
    font-size: 1.2rem;
    line-height: 1;
}

.queue-item-remove:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    transform: rotate(90deg) scale(1.1);
}

.queue-item-remove:active {
    transform: rotate(90deg) scale(0.95);
}

.queue-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    gap: var(--spacing-md);
}



.queue-stats {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    margin-left: auto;
}

/* Image Preview Modal */
.image-preview-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
}

.image-preview-modal.active {
    display: block;
    animation: modalFadeIn 0.25s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(8px);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    gap: var(--spacing-lg);
}

.modal-content {
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    gap: var(--spacing-lg);
}

.upload-content .modal-content {
    flex-direction: column;
}

.upload-content .modal-image {
    max-width: 80vw;
}

.upload-content .modal-info {
    max-width: 80vw;
}

.modal-image {
    max-width: 55vw;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    pointer-events: auto;
    cursor: default;
}

.modal-info {
    max-width: 400px;
    max-height: 80vh;
    padding: var(--spacing-xl);
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    color: white;
    font-size: 0.95rem;
    line-height: 1.7;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
    pointer-events: auto;
    animation: slideInFromRight 0.4s ease 0.1s backwards;
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scrollbar for modal info */
.modal-info::-webkit-scrollbar {
    width: 6px;
}

.modal-info::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.modal-info::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

.modal-info::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Responsive: stack vertically on smaller screens */
@media (max-width: 1024px) {
    .modal-backdrop {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .modal-content {
        flex-direction: column;
    }

    .modal-image {
        max-width: 90vw;
        max-height: 60vh;
    }

    .modal-info {
        max-width: 90vw;
        max-height: 25vh;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInFromTop {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInSlideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================================ */
/* Configuration UI Elements */
/* ============================================================================ */

/* Load/Save Config Buttons */
.btn-load-config,
.btn-save-config,
.btn-load-prompt {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 6px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-smooth);
}

.btn-load-config:hover,
.btn-save-config:hover,
.btn-load-prompt:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px var(--accent-glow);
}

.btn-load-config:active,
.btn-save-config:active,
.btn-load-prompt:active {
    transform: translateY(0);
}

.icon-svg {
    width: 100%;
    height: 100%;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* Configuration Modal */
.config-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
}

.config-modal.active {
    display: block;
    animation: modalFadeIn 0.25s ease;
}

.config-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.config-modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px var(--shadow);
    animation: zoomIn 0.3s ease;
}

.config-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.config-modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.config-modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.config-modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.config-modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

/* Config List */
.config-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.config-item {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-smooth);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.config-item:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    transform: translateX(4px);
    box-shadow: 0 2px 8px var(--accent-glow);
}

.config-item-info {
    flex: 1;
    min-width: 0;
}

.config-item-name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.config-item-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.config-item:hover .config-item-date {
    color: rgba(255, 255, 255, 0.8);
}

.config-item-delete {
    width: 24px;
    height: 24px;
    min-width: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-smooth);
    opacity: 0;
    font-size: 16px;
    font-weight: 400;
    line-height: 1;
    padding: 0;
}

.config-item:hover .config-item-delete {
    opacity: 1;
}

.config-item-delete:hover {
    background: #ef4444;
    border-color: #ef4444;
    color: white;
    transform: scale(1.05);
}

/* Save Config Form */
.save-config-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.save-config-form label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.config-input {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    transition: all var(--transition-normal);
}

.config-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.save-config-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    margin-top: var(--spacing-sm);
}

/* Responsive modal */
@media (max-width: 768px) {
    .modal-image {
        max-width: 95vw;
        max-height: 85vh;
    }

    .config-modal-content {
        max-width: 95vw;
    }
}